Water flow at the normal to a face
Shift - A -&gt; Mesh -&gt; Cylinder

R -&gt; X -&gt; 90




S -&gt; Y -&gt; 3



Object -&gt; Quick Effects -&gt; Liquid



change flow behavior from geometry to inflow



check &quot;Initial velocity&quot; -&gt; y: 20



Select Cylinder -&gt; Shift D -&gt; S -&gt; 1.1



Tab -&gt; Select top face



X -&gt; delete face

Tab

Change type to effector




add solidify modifier, thickness: 0.1 -&gt; move to top (before fluid)



select domain and press S -&gt; 2 to double the size of the domain



change resolution division to 140

start animation by pressing Space
result: